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Поиогите пожалуйста надо перевисти вопросы и ответить на них 1)christoper columbus discovered a) central america b) south america c) north america d) the united states of america 2) the first english settlements appeared in a) north america in the 17th century b) south america in the 17th century c) central america in the 16th century d) america in the 18th century 4) the mayflower is a) the name of season b) the name of the first english settlement in america c) the name of a flower d) the name of the ship that sailed from plymouth for the new world in 1620 5) the first colonists started the tradition of a) halloween b) independence day c ) thanksgiving day d) memorial day 6) the first president of the us was a) george washington b) abraham lincoln c) jeffrey gefferson d) bill clinton 7) the capital of the us is a) washington D, C. b) washington c) new york d) philadelphia 8) there were .... colonies in america in 1773 a) 13 b) 7 c) 21 d) 10 9) jeans are clothes worn by a) cowboys in the wild west b) people all over the world c) levi strauss people d) actors in america 10) the american flag is often called a) union jack b) the stars and stripes c) the red dragon d) the wite eagle 11) there are ...... stripes on the american flag a) 7 b) 6 C) 50 d) 13 !2) the oficial national symbol of the usa is a) the statue of liberty b) the eagle c) the lurkey d) the mayflower

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какие из привиденных ниже веществ реагируют с растворами гидрооксида натрия HCl CaO H2SO4 CO2 KCl CuO напишите уравнения осуществимых реакций